Kotak, Rubina and Meikle, Peter and Pozzo, Monica and van Dyk , Schuyler D. and Farrah, Duncan and Fesen, Robert and Filippenko, Alexei V. and Foley, Ryan J. and Fransson, Claes and Gerardy, Christopher L. and Höflich, Peter A. and Lundqvist, Peter and Mattila, Seppo and Sollerman, Jesper and Wheeler, J. Craig (2006) Spitzer Measurements of Atomic and Molecular Abundances in the Type IIP SN 2005af. Astrophysical Journal Letters, 651 (2). L117-L120. ISSN 0004-637X http://resolver.caltech.edu/CaltechAUTHORS:20110630-105710213
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We present results based on mid-infrared (3.6-30 μm) observations with the Spitzer Space Telescope of the nearby Type IIP supernova 2005af. We report the first ever detection of the SiO molecule in a Type IIP supernova. Together with the detection of the CO fundamental, this is an exciting finding as it may signal the onset of dust condensation in the ejecta. From a wealth of fine-structure lines we provide abundance estimates for stable Ni, Ar, and Ne that, via spectral synthesis, may be used to constrain nucleosynthesis models.
|Additional Information:||© 2006 American Astronomical Society. Received 2006 August 30; accepted 2006 September 25; published 2006 October 23. This work is based on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology under NASA contract 1407. Financial support for the research is provided by NASA/Spitzer grant GO-20256. Support for this work was provided by NASA through an award issued by JPL/Caltech. R. K. and S. M. acknowledge support from an ESO fellowship and from the EURYI Awards scheme, respectively.|
|Subject Keywords:||supernovae: general; supernovae: individual (SN 1987A, SN 2004dj, SN 2005af)|
|Official Citation:||Spitzer Measurements of Atomic and Molecular Abundances in the Type IIP SN 2005af Rubina Kotak et al 2006 ApJ 651 L117|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Jason Perez|
|Deposited On:||30 Jun 2011 18:26|
|Last Modified:||26 Dec 2012 13:21|
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